Here is the biggest, fattest, dampest squib of the week: perhaps the most disappointing film ever to have won the Golden Bear at the Berlin film festival. Brazilian director José Padilha made the documentary Bus 174, about a man who stormed aboard a city bus in Rio in 2000 and held the passengers to ransom at gunpoint on live TV. His fiction feature, based on the memoirs of a cop in the city's paramilitary elite squad, tells the story of how these hardcore officers were horrified to discover in the 1990s that Pope John Paul II on his upcoming visit wished to stay near the favelas and that they were therefore required to storm these no-go areas to clean them up. There's an awful lot of very cliched Brazilian slum-porn, gun-porn and poverty-porn, all knocked off from the influential favela masterpiece City of God. The movie's evasive cynicism, morphing gradually and insidiously into lipsmacking adoration of the macho lawmen in their SS-style black uniforms, is pathetic. The worst moment comes when the anti-hero Captain Nascimento (Wagner Moura) jeers at a feeble cop applying to join their ranks: "You belong with the whores, you belong with the pimps, you belong with the abortion clinics." Um, excuse me? Abortion clinics? Getting a reactionary sermon from a pumped-up man in uniform is the last thing we need.